Deformation joint structure and its construction method

Abstract

The present application discloses a deformation joint structure and a construction method thereof, wherein the deformation joint structure comprises a deformation joint (10), an elastic sealing pad (20), a deformation joint lining plate (30), a positioning unit (40) and an injection pipe (50), wherein the deformation joint comprises a main body and a mounting groove (11) extending from the main body to the end of the deformation joint, wherein the deformation joint lining plate is filled in the main body, wherein the elastic sealing pad is retained in the mounting groove by the positioning unit and defines an injection cavity (111) with the mounting groove, wherein the injection pipe is configured to be able to inject a fluid medium into the injection cavity, so that the elastic sealing pad can be pressed against the mounting groove. When the deformation joint structure leaks, the fluid medium can be injected into the injection cavity through the injection pipe, and the fluid medium in the injection cavity enables the elastic sealing pad to press against the mounting groove, so that the elastic sealing pad is seamlessly fitted with the deformation joint again, thereby conveniently completing the repair.

Description

Technical Field

[0001] The present application relates to the field of building construction, and more specifically, to a deformation joint structure and a construction method thereof. Background Art

[0002] In the prior art, deformation joints are usually protected by setting waterstops. The waterstops are embedded in the structure before the concrete structure is poured, and the joints are filled manually later. When the two sides of the deformation joints are displaced horizontally due to use and environmental changes, the deformation joints will leak and are difficult to repair.

[0003] Therefore, how to conveniently repair the leaking deformation joint becomes a technical problem that needs to be solved in this application. Summary of the invention

[0004] In view of this, the present application proposes a deformation joint structure to facilitate repairing the deformation joint when leakage occurs.

[0005] A deformation joint structure, wherein the deformation joint structure includes a deformation joint, an elastic sealing pad, a deformation joint lining plate, a positioning unit and an injection tube, the deformation joint includes a main body part and a mounting groove extending from the main body part to the end of the deformation joint, the deformation joint lining plate is filled in the main body part, the elastic sealing pad is retained in the mounting groove by the positioning unit and defines an injection cavity with the mounting groove, and the injection tube is configured to be able to inject a fluid medium into the injection cavity, so that the elastic sealing pad can be pressed against the mounting groove.

[0006] Optionally, the elastic sealing pad is arranged corresponding to the side wall of the mounting groove so as to be pressed against the corresponding side wall by injecting the fluid medium.

[0007] Optionally, the positioning unit is configured to apply pressure to the elastic sealing pad along a direction from an end of the deformation seam toward the main body portion.

[0008] Optionally, the positioning unit comprises a pressure block positioned in the mounting groove to apply sealing pressure to the elastic sealing pad.

[0009] Optionally, the positioning unit includes a pressing plate disposed at the end surface of the deformation joint, and the pressing block is pressed between the pressing plate and the elastic sealing pad.

[0010] Optionally, the positioning unit includes two pressing plates respectively fixed on the bases on both sides of the deformation joint, with a gap between the two pressing plates; and / or, the positioning unit includes the pressing blocks relatively arranged on the inner side of the end opening of the deformation joint.

[0011] Optionally, the deformation joint structure includes a plurality of elastic sealing pads arranged in sequence along the extension direction of the deformation joint, and the injection cavities defined by adjacent elastic sealing pads are sealed and adjacent to each other. The deformation joint structure includes a plurality of injection tubes capable of injecting fluid medium into the injection cavities defined by different elastic sealing pads.

[0012] Optionally: the base bodies on both sides of the deformation joint are provided with inspection grooves connected to the deformation joint, the inspection grooves are provided with cover plates, one end of the injection pipe extends into the injection cavity, and the other end is located in the inspection groove; and / or a valve is provided on the injection pipe.

[0013] Optionally, the deformation joint lining plate includes a first part and a second part arranged along the extension direction of the main part, and an embedded waterstop is provided between the first part and the second part.

[0014] The present application also provides a construction method of a deformation joint structure, wherein the construction method comprises: S1. forming a deformation joint so that the deformation joint comprises a main body portion and a mounting groove extending from the main body portion to the end of the deformation joint; S2. filling a deformation joint lining plate into the main body portion, and positioning an elastic sealing gasket in the mounting groove so that the elastic sealing gasket and the mounting groove define an injection cavity; S3. injecting a fluid medium into the injection cavity so that the elastic sealing gasket can be pressed against the mounting groove.

[0015] According to the technical solution of the present application, when leakage occurs in the deformation joint structure, fluid medium can be injected into the injection cavity through the injection tube. The fluid medium in the injection cavity enables the elastic sealing gasket to press the installation groove, so that the elastic sealing gasket can fit seamlessly with the deformation joint again, thereby completing the repair conveniently.

[0016] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present application, and the schematic implementation modes and descriptions of the present application are used to explain the present application. In the accompanying drawings:

[0018] Figure 1 is a structural schematic diagram of a deformation joint structure according to an embodiment of the present application;

[0019] Figure 2 for Figure 1 Enlarged view of the middle mounting slot;

[0020] Figures 3 to 8 The construction process of the deformation joint structure according to one embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with the implementation modes.

[0022] According to one aspect of the present application, a deformation joint structure is provided, wherein the deformation joint structure includes a deformation joint 10, an elastic sealing pad 20, a deformation joint lining plate 30, a positioning unit 40 and an injection tube 50, the deformation joint 10 includes a main body part and a mounting groove 11 extending from the main body part to the end of the deformation joint 10, the deformation joint lining plate 30 is filled in the main body part, the elastic sealing pad 20 is retained in the mounting groove 11 by the positioning unit 40 and defines an injection cavity 111 with the mounting groove 11, and the injection tube 50 is configured to be able to inject a fluid medium into the injection cavity 111, so that the elastic sealing pad 20 can be pressed against the mounting groove 11.

[0023] The present application also provides a method for repairing a deformation joint structure, which is the deformation joint structure of the present application. The repair method includes: injecting a fluid medium into the injection cavity 111 through the injection tube 50 so that the elastic sealing pad 20 can press the installation groove 11 again.

[0024] In the present application, when leakage occurs in the deformation joint structure, fluid medium can be injected into the injection chamber 111 through the injection tube 50. The fluid medium in the injection chamber 111 enables the elastic sealing gasket 20 to press the installation groove 11, so that the elastic sealing gasket 20 can fit seamlessly with the deformation joint 10 again, thereby completing the repair conveniently.

[0025] Among them, the elastic sealing pad 20 can adopt an appropriate form so that it can be positioned in the mounting groove 11 and pressed against the mounting groove 11 under the extrusion of the fluid medium, so as to achieve a sealing effect of seamless fit with the mounting groove 11. In one embodiment of the present application, the elastic sealing pad 20 is arranged corresponding to the side wall of the mounting groove 11 so that it can be pressed against the corresponding side wall by injecting the fluid medium. For example, the elastic sealing pad 20 can be bent into a U-shape to have parallel opposite planar parts, and the planar parts can correspond to the opposite side walls of the mounting groove 11, so that the planar parts are pressed against the side walls of the mounting groove 11 under the extrusion of the fluid medium. Alternatively, separate elastic sealing pads 20 can be respectively arranged corresponding to the side walls of the mounting groove 11, so that the elastic sealing pads 20 can be pressed against their corresponding side walls by the extrusion of the fluid medium after the fluid medium is injected.

[0026] In addition, the elastic sealing pad 20 can be made of appropriate materials to meet the requirements of elastic sealing and waterproofing. For example, the elastic sealing pad 20 can be made of EPDM (ethylene propylene diene monomer rubber).

[0027] The positioning unit 40 is used to position the elastic sealing pad 20 in the installation groove 11. The positioning unit 40 can be set according to the form and position of the elastic sealing pad 20 to prevent the elastic sealing pad 20 from being separated from the installation groove 11 under the action of the fluid medium. For ease of setting and maintenance, preferably, the positioning unit 40 is configured to apply pressure from the end of the deformation joint 10 toward the main body to the elastic sealing pad 20, so as to compress and position the elastic sealing pad 20 between the main body and the positioning unit 40.

[0028] To facilitate the application of pressure toward the main body, such as Figure 1 and Figure 2 As shown, the positioning unit 40 may include a pressing block 41 positioned in the mounting groove 11 to apply sealing pressure to the elastic sealing pad 20. The pressing block 41 may be made of a suitable rigid material, for example, a block made of a corrosion-resistant metal (such as stainless steel). In addition, a sealant (such as a two-component polysulfide sealant G1) may be filled between the pressing block 41 and the elastic sealing pad 20 to ensure the sealing of the injection cavity 111.

[0029] The pressing block 41 can be fixed in the mounting groove 11 by an appropriate method, for example, by a fastener. Figure 2 As shown, the positioning unit 40 includes a pressing plate 42 disposed at the end surface of the deformation joint 10, and the pressing block 41 is pressed between the pressing plate 42 and the elastic sealing pad 20. That is, the pressing block 41 is positioned by the pressing plate 42 and presses the elastic sealing pad 20 to position. The pressing plate 42 can be fixed in an appropriate manner, for example, it can be fixed to the substrate P on both sides of the end of the deformation joint 10 by fasteners (such as bolts 43).

[0030] The pressing plate 42 may be a complete plate member, which is fixed to the base P on both sides across the deformation joint 10. Figure 2 As shown, the positioning unit 40 may include two pressure plates 42 respectively fixed on the bases on both sides of the deformation joint 10, with a gap between the two pressure plates 42. Therefore, when differential settlement occurs in the structures on both sides of the deformation joint 10, the gap between the two pressure plates 42 can meet the deformation requirements of the structures on both sides, thereby avoiding damage to the elastic sealing pad 20 due to differential deformation.

[0031] The injection tube 50 may be disposed at the gap between the pressing plates 42. To ensure the sealing effect, the space between the pressing plates 42 and the injection tube 50 is filled with water-swellable adhesive G2 (e.g., polyurethane water-swellable waterproof adhesive). By filling the water-swellable adhesive, the water-swellable adhesive can be expanded when the aqueous fluid medium is injected, thereby sealing the space between the pressing plates 42 and the injection tube 50, and ensuring that the space below the pressing plates 42 is in a sealed state when differential settlement does not occur.

[0032] In addition, the positioning unit 40 may include the pressing block 41 disposed opposite to the inner side of the end opening of the deformation joint 10. Specifically, the pressing block 41 may be disposed corresponding to the two sides of the substrate. This arrangement of the pressing block 41 is also applicable to the case of two pressing plates 42, and the corresponding pressing blocks 41 may be positioned respectively by the two pressing plates 42 during use.

[0033] In a preferred embodiment of the present application, the deformation joint structure may include a plurality of elastic sealing pads 20 sequentially arranged along the extension direction of the deformation joint 10, and the injection chambers 111 defined by adjacent elastic sealing pads 20 are sealed and adjacent. By alternately arranging a plurality of elastic sealing pads 20 along the extension direction of the deformation joint 10, the deformation joint 10 can be sealed in sections in the extension direction, so that when leakage and other problems occur, the sealing section where the problem actually occurs can be repaired and maintained. For example, when leakage occurs, the cause of failure of the deformation joint can be found along the extension direction of the deformation joint 10, and each elastic sealing pad 20 can be checked in sections. After finding the elastic sealing pad 20 that is detached from the deformation joint 10, if the elastic sealing pad 20 is not damaged, the elastic sealing pad 20 can be seamlessly fitted with the deformation joint 10 again by injecting a fluid medium; if the elastic sealing pad 20 is damaged, the elastic sealing pad 20 can be replaced and the fluid medium can be injected to complete the repair. Therefore, by arranging a plurality of elastic sealing pads 20, it is helpful to find the cause of failure and save repair costs.

[0034] For the convenience of maintenance, the pressing block 41 and the pressing plate 42 can also be arranged in sections according to the arrangement of the elastic sealing gasket 20. That is, the length of the pressing block 41 and the pressing plate 42 (i.e., the size along the extension direction of the deformation joint 10) matches the length of the corresponding elastic sealing gasket 20. During maintenance, the corresponding pressing plate 42 and pressing block 41 can be removed to determine the sealing condition of the corresponding elastic sealing gasket 20.

[0035] In addition, to ensure the sealing abutment between adjacent elastic sealing pads 20, the adjacent elastic sealing pads 20 can be fixed to each other by an appropriate method. For example, the elastic sealing pads 20 can be provided with a buckle structure for overlapping, so that the adjacent elastic sealing pads 20 are overlapped and fixed by the buckle structure.

[0036] In addition, the deformation joint structure may include a plurality of injection tubes 50 capable of injecting fluid medium into the injection chambers 111 defined by different elastic sealing pads 20. Thus, the fluid medium can be injected through the plurality of injection tubes 50 to speed up the injection of the fluid medium, which is also conducive to the accurate repair of the failure position during repair.

[0037] Preferably, the number of injection tubes 50 is less than the number of elastic sealing pads 20, so as to take into account both efficiency and cost. For example, the injection tubes 50 can be arranged at intervals greater than the length of the elastic sealing pad 20. Specifically, the elastic sealing pad 20 can be divided into a first elastic sealing pad into which the injection tube 50 directly injects the fluid medium into its injection cavity 111 and a second elastic sealing pad into which the fluid medium is injected through an adjacent injection cavity 111. In other words, an injection tube 50 can be arranged at the position where the first elastic sealing pad is located, and an injection tube 50 is not arranged at the position where the second elastic sealing pad is located. Among them, the lengths of the first elastic sealing pad and the second elastic sealing pad can be the same or different, and can be selected according to the specifications of the deformation joint 10 so that there is an appropriate interval between the injection tubes 50. For example, the length of the second elastic sealing pad can be 2m-3m, so that the interval between the injection tubes 50 is 2m-3m.

[0038] It can be understood that the elastic sealing pad 20, the positioning unit 40, the injection pipe 50 and other components are all arranged at the end of the deformation joint 10, and these components need to be exposed only during inspection and maintenance. Figure 2 As shown, the base bodies on both sides of the deformation joint 10 are provided with inspection grooves 60 connected to the deformation joint 10, and the inspection grooves 60 are provided with cover plates 70. One end of the injection tube 50 extends into the injection cavity 111, and the other end is located in the inspection groove 60. Thus, the inspection groove 60 can be covered by the cover plate 70 to provide protection for the elastic sealing pad 20, the positioning unit 40, and the injection tube 50. When maintenance is required, the cover plate 70 can be opened to approach the inspection groove 60 and the components therein.

[0039] In addition, the injection tube 50 is connected to the injection device only when the fluid medium needs to be injected, so as to inject the fluid medium into the injection cavity 111 through the injection tube 50. In most cases, the injection tube 50 is in a non-operating state. In order to avoid the leakage of the fluid medium caused by the connection between the injection tube 50 and the injection cavity 111 when the injection tube 50 is not in operation, it is preferred that a valve 51 (such as a stop valve) is provided on the injection tube 50, so that when the injection is required, the valve is opened to perform the injection operation, and when the injection is not in operation, the valve is closed to cut off the connection between the injection tube 50 and the injection cavity 111.

[0040] In the deformation joint structure of the present application, a water stop strip or the like can also be combined to form a multi-layer protection. Figure 1 In the illustrated embodiment, the deformation joint backing plate 30 includes a first portion 31 and a second portion 32 arranged along the extension direction of the main portion, and an embedded waterstop 80 is provided between the first portion 31 and the second portion 32 .

[0041] According to another aspect of the present application, a construction method of a deformation joint structure is provided, wherein the construction method comprises: S1. forming a deformation joint 10, so that the deformation joint 10 comprises a main body portion and a mounting groove 11 extending from the main body portion to the end of the deformation joint 10; S2. filling a deformation joint lining plate 30 into the main body portion, and positioning an elastic sealing gasket 20 in the mounting groove 11, so that the elastic sealing gasket 20 and the mounting groove 11 define an injection cavity 111; S3. injecting a fluid medium into the injection cavity 111, so that the elastic sealing gasket 20 can be pressed against the mounting groove 11.

[0042] When the deformation joint structure leaks, the fluid medium can be injected into the injection cavity 111 through the injection tube 50. The fluid medium in the injection cavity 111 enables the elastic sealing gasket 20 to press the installation groove 11, so that the elastic sealing gasket 20 can fit seamlessly with the deformation joint 10 again, thereby completing the repair conveniently.

[0043] Through the construction method of the present application, the deformation joint structure of the present application can be formed.

[0044] In step S1, the deformation joint 10 may be formed by pouring the base (concrete structure) on both sides of the deformation joint 10. In the case where the inspection groove 60 is provided, the inspection groove 60 may be left on the poured base.

[0045] In the case where a plurality of injection tubes 50 are arranged at intervals, in step S2, a first elastic sealing pad and a second elastic sealing pad may be alternately arranged along the extension direction of the deformation joint 10, and the injection tube 50 may be arranged at the first elastic sealing pad. More specifically, when the injection tube 50 is arranged, the elastic sealing pad 20 may be first placed in the mounting groove 11, and then one end of the injection tube 50 may be extended into the mounting groove 11, and then the pressing block 41 may be placed and the pressing plate 42 may be fixed, so that the injection tube 50 is located in the gap between the pressing plates 42, and then the gap between the pressing plate 42 and the injection tube 50 may be filled with water-swellable glue.

[0046] The deformation joint structure and construction method of the present application are described below with reference to the accompanying drawings.

[0047] First, the base bodies on both sides are cast (for example, the first base body part P1 is cast first, and then the second base body part P2 is cast) to form the deformation joint 10 and the inspection groove 60, and then the first part 31 of the deformation joint liner plate 30 is filled in the main body, and then the embedded water stop strip 80 is set. Figure 3 shown.

[0048] Then, the second part 32 of the deformation joint lining plate 30 is filled in the main body, the elastic sealing pad 20 is arranged in the installation groove 11, and the injection pipe 50 extending into the injection cavity 111 is arranged at the first elastic sealing pad. Figure 4Adjacent elastic sealing pads 20 are fixedly overlapped by a buckle structure.

[0049] Then, a pressing block 41 is arranged in the installation groove 11, and a two-component polysulfide sealant G1 is filled between the pressing blocks 41 and between the pressing blocks 41 and the elastic sealing gasket 20. Figure 5 shown.

[0050] Then, the pressing plate 42 is fixed to the corresponding base body by bolts 43 to complete the positioning of the pressing block 41 and the elastic sealing pad 20. Figure 6 Wherein, the water-swellable glue G2 is filled between the pressing plate 42 and the injection pipe 50 .

[0051] Then, the injection pipe 50 is connected to the injection device (not shown) and the valve is opened to inject the fluid medium (such as engine oil L) into the injection chamber 111, so that the fluid medium squeezes the elastic sealing gasket 20, so that the elastic sealing gasket 20 presses the side wall of the installation groove 11, so as to fit seamlessly with the deformation joint 10, as shown in FIG. Figure 7 After the fluid medium is added, the injection tube 50 is separated from the injection device and the valve is closed.

[0052] Finally, the cover plate 70 is placed on the inspection slot 60. Figure 8 shown.

[0053] When maintenance is required, the cover plate 70 can be opened and the sealing condition of each elastic sealing gasket 20 can be checked along the extension direction of the deformation joint 10 (the corresponding pressure plate 41 and pressure block 42 can be removed during the inspection). For the elastic sealing gasket 20 with problems (such as leakage), if the elastic sealing gasket 20 is not damaged, the fluid medium can be added through the injection tube 50 so that the elastic sealing gasket 20 presses the side wall of the installation groove 11 again, and then the pressure block 42 and the pressure plate 41 can be reinstalled; if the elastic sealing gasket 20 is damaged, a new elastic sealing gasket 20 can be replaced, and then the fluid medium can be added through the injection tube 50 so that the elastic sealing gasket 20 presses the side wall of the installation groove 11, and then the pressure block 42 and the pressure plate 41 can be reinstalled.

[0054] The preferred embodiments of the present application are described in detail above; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0056] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. A deformation joint structure, characterized in that: The deformation joint structure comprises a deformation joint (10), an elastic sealing pad (20), a deformation joint lining plate (30), a positioning unit (40) and an injection pipe (50); the deformation joint (10) comprises a main body portion and a mounting groove (11) extending from the main body portion to the end of the deformation joint (10); the deformation joint lining plate (30) is filled in the main body portion; the elastic sealing pad (20) is held in the mounting groove (11) by the positioning unit (40) and defines an injection pipe with the mounting groove (11). The liquid cavity (111) is provided with a liquid injection tube (50) configured to inject a fluid medium into the liquid injection cavity (111), so that the elastic sealing gasket (20) can be pressed against the mounting groove (11), the positioning unit (40) is configured to apply pressure to the elastic sealing gasket (20) along the direction from the end of the deformation joint (10) toward the main body, and the positioning unit (40) includes a pressure block (41) positioned in the mounting groove (11) to apply pressure to the elastic sealing gasket (20) in a sealing manner.

2. The deformation joint structure according to claim 1, characterized in that: The elastic sealing pad (20) is arranged corresponding to the side wall of the installation groove (11) so as to be pressed against the corresponding side wall by injecting the fluid medium.

3. The deformation joint structure according to claim 1, characterized in that: The positioning unit (40) comprises a pressing plate (42) arranged at the end surface of the deformation joint (10), and the pressing block (41) is pressed tightly between the pressing plate (42) and the elastic sealing pad (20).

4. The deformation joint structure according to claim 3, characterized in that: The positioning unit (40) comprises two pressing plates (42) respectively fixed on two side substrates of the deformation joint (10), with a gap between the two pressing plates (42); and / or the positioning unit (40) comprises pressing blocks (41) arranged opposite to each other at the inner side of the end opening of the deformation joint (10).

5. The deformation joint structure according to any one of claims 1 to 4, characterized in that: The deformation joint structure comprises a plurality of elastic sealing pads (20) arranged in sequence along the length extension direction of the deformation joint (10), the injection cavities (111) defined by adjacent elastic sealing pads (20) being sealed and adjacent to each other, and the deformation joint structure comprises a plurality of injection tubes (50) capable of injecting fluid medium into the injection cavities (111) defined by different elastic sealing pads (20).

6. The deformation joint structure according to any one of claims 1 to 4, characterized in that: The base bodies on both sides of the deformation joint (10) are provided with inspection grooves (60) connected to the deformation joint (10), the inspection grooves (60) are provided with cover plates (70), one end of the injection pipe (50) extends into the injection cavity (111), and the other end is located in the inspection groove (60); and / or, The liquid injection pipe (50) is provided with a valve.

7. The deformation joint structure according to any one of claims 1 to 4, characterized in that: The deformation joint lining plate (30) comprises a first part (31) and a second part (32) arranged along the depth extension direction of the main part, and an embedded water stop strip (80) is provided between the first part (31) and the second part (32).

8. A construction method of a deformation joint structure, characterized in that: The construction method comprises: S1. forming a deformation joint (10), so that the deformation joint (10) includes a main body portion and a mounting groove (11) extending from the main body portion to the end of the deformation joint (10); S2. Filling the deformation joint lining plate (30) into the main body, and positioning the elastic sealing pad (20) in the mounting groove (11) by a positioning unit (40) so that the elastic sealing pad (20) and the mounting groove (11) define a liquid injection cavity (111), the positioning unit (40) being configured to apply pressure to the elastic sealing pad (20) along the direction from the end of the deformation joint (10) toward the main body, and the positioning unit (40) comprising a pressure block (41) positioned in the mounting groove (11) to apply pressure to the elastic sealing pad (20) in a sealing manner; S3. Injecting a fluid medium into the injection cavity (111) so that the elastic sealing pad (20) can be pressed tightly against the installation groove (11).

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